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 TM 11-6625-3024-14/EE641-AC-MMA-010/E154 SYSEX/10 33AA50-5-1-1
2. Set the DATA CONTROL switches as
5. Press BLOCK MODE and WRITE switches.
Verify that respective indicator lights extinguish.
follows:
CONT. READ
6. Press REWIND.
- OFF
REPEAT ON ERROR
- OFF
4K BLOCK
- OFF
3-8. 4K BLOCK
SHIFT ONES
- ON
BLOCK MODE
- OFF
Produces data in 4096 byte blocks. This mode
WRITE
- ON
must be selected in conjunction with the BLOCK
MODE switch,
1. Ensure that Exerciser is in the Standby mode
(see paragraph 3-4).
3. Press WRITE DATA-ALL PAT, pushbutton
2. Set the DATA CONTROL switches as
switch. Verify that the nine WRITE DATA switches
follows:
are lit with a PAT.
CONT. READ
- OFF
4. Press MOTION CONTROL-RUN FORWARD
REPEAT ON ERROR
- OFF
switch. Verify that the STOP and WRITE RESET
4K BLOCK
- ON
indicators extinguish and the RUN FORWARD
- OFF
SHIFT ONES
indicator lights.
BLOCK MODE
- ON
WRITE
- ON
The Exerciser produces a byte of all ones, then a
one in each subsequent track between the all ones
3. Press MOTION CONTROL-RUN FORWARD
byte, A sync pattern of 16 bits of one-zero, fol-
switch. Verify that the STOP indicator extin-
lowed by 16 ones, is produced on the parity track,
guishes and the RUN FORWARD and WRITE
RESET indicators flicker.
000001000
111111111
Data will be recorded on transport tape in 4096
000000100
byte blocks. Errors (parity errors) will be counted
111111111
and displayed on the SOFT ERROR digital dis-
000000010
play. While the transport is in motion, no other
111111111
control (data or motion) can be changed until the
000000001
transport is stopped.
5. Press STOP switch to stop transport motion.
4. Press STOP switch to stop transport motion.
Verify STOP and WRITE RESET indicators light
Verify that the STOP and RUN FORWARD indi-
and RUN FORWARD indicator extinguishes.
cator lights extinguish.
6. Press SHIFT ONES and WRITE indicators.
5. Press 4K BLOCK, BLOCK MODE and
Verify respective indicators extinguish.
WRITE switches. Verify that respective indicator
lights extinguish.
7. Press REWIND.
6. Press REWIND.
3-10. REPEAT ON ERROR
3-9. SHIFT ONES
Repeat on error is a read function and can be
selected for Read or Write mode of operation. In
This function is recommended for skew measure-
WRITE mode, REPEAT ON ERROR must be
ments.
selected in conjunction with BLOCK mode.
1. Ensure that Exerciser is in Standby mode
1. Ensure that Exerciser is in the Standby mode
(see paragraph 3-4).
(see paragraph 3-4).
3-14
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